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Quantum entanglement between an optical photon and a solid-state spin qubit

Togan, E. and Chu, Y. and Trifonov, A. S. and Jiang, L. and Maze, J. and Childress, L. and Dutt, M. V. G. and Sørensen, A. S. and Hemmer, P. R. and Zibrov, A. S. and Lukin, M. D. (2010) Quantum entanglement between an optical photon and a solid-state spin qubit. Nature, 466 (7307). pp. 730-734. ISSN 0028-0836.

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Quantum entanglement is among the most fascinating aspects of quantum theory. Entangled optical photons are now widely used for fundamental tests of quantum mechanics and applications such as quantum cryptography. Several recent experiments demonstrated entanglement of optical photons with trapped ions, atoms and atomic ensembles, which are then used to connect remote long-term memory nodes in distributed quantum networks. Here we realize quantum entanglement between the polarization of a single optical photon and a solid-state qubit associated with the single electronic spin of a nitrogen vacancy centre in diamond. Our experimental entanglement verification uses the quantum eraser technique, and demonstrates that a high degree of control over interactions between a solid-state qubit and the quantum light field can be achieved. The reported entanglement source can be used in studies of fundamental quantum phenomena and provides a key building block for the solid-state realization of quantum optical networks.

Item Type:Article
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URLURL TypeDescription DOIArticle ReadCube access
Jiang, L.0000-0002-0000-9342
Zibrov, A. S.0000-0002-3200-4351
Lukin, M. D.0000-0002-8658-1007
Additional Information:©2010 Macmillan Publishers Limited. Received 8 February; accepted 8 June 2010. We thank F. Jelezko, J. Wrachtrup, V. Jacques, N. Manson, J. Taylor and J. MacArthur for discussions and experimental help. This work was supported by the Defense Advanced Research Projects Agency, NSF, Harvard-MIT CUA, the NDSEG Fellowship and the Packard Foundation. The content of the information does not necessarily reflect the position or the policy of the US Government, and no official endorsements should be inferred. Author Contributions: All authors contributed extensively to the work presented in this paper.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Harvard-MIT Center for Ultracold AtomsUNSPECIFIED
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
David and Lucile Packard FoundationUNSPECIFIED
Issue or Number:7307
Record Number:CaltechAUTHORS:20100823-111859164
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19591
Deposited By: Tony Diaz
Deposited On:23 Aug 2010 19:54
Last Modified:09 Mar 2020 13:19

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